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3b533202 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <stdint.h> | |
22 | #include <stdlib.h> | |
23 | #include <sys/types.h> | |
24 | #include <sys/stat.h> | |
25 | #include <fcntl.h> | |
26 | #include <unistd.h> | |
27 | #include <string.h> | |
28 | #include <sys/time.h> | |
29 | #include <inttypes.h> | |
3b533202 BV |
30 | #include <glib.h> |
31 | #include <libusb.h> | |
45c59c8b BV |
32 | #include "libsigrok.h" |
33 | #include "libsigrok-internal.h" | |
3b533202 BV |
34 | #include "dso.h" |
35 | ||
fc8fe3e3 BV |
36 | /* Max time in ms before we want to check on USB events */ |
37 | /* TODO tune this properly */ | |
e98b7f1b | 38 | #define TICK 1 |
3b533202 | 39 | |
62bb8840 | 40 | static const int hwcaps[] = { |
1953564a BV |
41 | SR_CONF_OSCILLOSCOPE, |
42 | SR_CONF_LIMIT_SAMPLES, | |
43 | SR_CONF_CONTINUOUS, | |
44 | SR_CONF_TIMEBASE, | |
45 | SR_CONF_BUFFERSIZE, | |
46 | SR_CONF_TRIGGER_SOURCE, | |
47 | SR_CONF_TRIGGER_SLOPE, | |
48 | SR_CONF_HORIZ_TRIGGERPOS, | |
49 | SR_CONF_FILTER, | |
50 | SR_CONF_VDIV, | |
51 | SR_CONF_COUPLING, | |
3b533202 BV |
52 | 0, |
53 | }; | |
54 | ||
55 | static const char *probe_names[] = { | |
78693401 | 56 | "CH1", "CH2", |
3b533202 BV |
57 | NULL, |
58 | }; | |
59 | ||
62bb8840 | 60 | static const struct dso_profile dev_profiles[] = { |
88a13f30 | 61 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
3b533202 | 62 | "Hantek", "DSO-2090", |
88a13f30 BV |
63 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, |
64 | { 0x04b4, 0x2150, 0x04b5, 0x2150, | |
65 | "Hantek", "DSO-2150", | |
66 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
67 | { 0x04b4, 0x2250, 0x04b5, 0x2250, | |
68 | "Hantek", "DSO-2250", | |
69 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
70 | { 0x04b4, 0x5200, 0x04b5, 0x5200, | |
71 | "Hantek", "DSO-5200", | |
72 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
73 | { 0x04b4, 0x520a, 0x04b5, 0x520a, | |
74 | "Hantek", "DSO-5200A", | |
75 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
76 | { 0, 0, 0, 0, 0, 0, 0 }, | |
3b533202 BV |
77 | }; |
78 | ||
62bb8840 | 79 | static const uint64_t buffersizes[] = { |
a370ef19 BV |
80 | 10240, |
81 | 32768, | |
82 | /* TODO: 65535 */ | |
62bb8840 | 83 | 0, |
a370ef19 BV |
84 | }; |
85 | ||
62bb8840 | 86 | static const struct sr_rational timebases[] = { |
a370ef19 BV |
87 | /* microseconds */ |
88 | { 10, 1000000 }, | |
89 | { 20, 1000000 }, | |
90 | { 40, 1000000 }, | |
91 | { 100, 1000000 }, | |
92 | { 200, 1000000 }, | |
93 | { 400, 1000000 }, | |
94 | /* milliseconds */ | |
95 | { 1, 1000 }, | |
96 | { 2, 1000 }, | |
97 | { 4, 1000 }, | |
98 | { 10, 1000 }, | |
99 | { 20, 1000 }, | |
100 | { 40, 1000 }, | |
101 | { 100, 1000 }, | |
102 | { 200, 1000 }, | |
103 | { 400, 1000 }, | |
62bb8840 | 104 | { 0, 0}, |
a370ef19 BV |
105 | }; |
106 | ||
62bb8840 | 107 | static const struct sr_rational vdivs[] = { |
313deed2 BV |
108 | /* millivolts */ |
109 | { 10, 1000 }, | |
110 | { 20, 1000 }, | |
111 | { 50, 1000 }, | |
112 | { 100, 1000 }, | |
113 | { 200, 1000 }, | |
114 | { 500, 1000 }, | |
115 | /* volts */ | |
116 | { 1, 1 }, | |
117 | { 2, 1 }, | |
118 | { 5, 1 }, | |
62bb8840 | 119 | { 0, 0 }, |
313deed2 BV |
120 | }; |
121 | ||
62bb8840 | 122 | static const char *trigger_sources[] = { |
a370ef19 BV |
123 | "CH1", |
124 | "CH2", | |
125 | "EXT", | |
88a13f30 | 126 | /* TODO: forced */ |
62bb8840 | 127 | NULL, |
a370ef19 | 128 | }; |
3b533202 | 129 | |
62bb8840 | 130 | static const char *filter_targets[] = { |
ebb781a6 BV |
131 | "CH1", |
132 | "CH2", | |
133 | /* TODO: "TRIGGER", */ | |
62bb8840 | 134 | NULL, |
ebb781a6 BV |
135 | }; |
136 | ||
62bb8840 | 137 | static const char *coupling[] = { |
b58fbd99 BV |
138 | "AC", |
139 | "DC", | |
140 | "GND", | |
62bb8840 | 141 | NULL, |
b58fbd99 BV |
142 | }; |
143 | ||
982947f7 | 144 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
a873c594 | 145 | static struct sr_dev_driver *di = &hantek_dso_driver_info; |
e98b7f1b | 146 | |
69b07d14 | 147 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
3b533202 | 148 | |
62bb8840 | 149 | static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof) |
3b533202 BV |
150 | { |
151 | struct sr_dev_inst *sdi; | |
87ca93c5 | 152 | struct sr_probe *probe; |
269971dd BV |
153 | struct drv_context *drvc; |
154 | struct dev_context *devc; | |
87ca93c5 | 155 | int i; |
3b533202 BV |
156 | |
157 | sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING, | |
88a13f30 | 158 | prof->vendor, prof->model, NULL); |
3b533202 BV |
159 | if (!sdi) |
160 | return NULL; | |
a873c594 | 161 | sdi->driver = di; |
3b533202 | 162 | |
e98b7f1b UH |
163 | /* |
164 | * Add only the real probes -- EXT isn't a source of data, only | |
87ca93c5 BV |
165 | * a trigger source internal to the device. |
166 | */ | |
167 | for (i = 0; probe_names[i]; i++) { | |
168 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, | |
169 | probe_names[i]))) | |
170 | return NULL; | |
171 | sdi->probes = g_slist_append(sdi->probes, probe); | |
172 | } | |
173 | ||
269971dd | 174 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
e98b7f1b | 175 | sr_err("Device context malloc failed."); |
3b533202 BV |
176 | return NULL; |
177 | } | |
e98b7f1b | 178 | |
269971dd BV |
179 | devc->profile = prof; |
180 | devc->dev_state = IDLE; | |
181 | devc->timebase = DEFAULT_TIMEBASE; | |
182 | devc->ch1_enabled = TRUE; | |
183 | devc->ch2_enabled = TRUE; | |
184 | devc->voltage_ch1 = DEFAULT_VOLTAGE; | |
185 | devc->voltage_ch2 = DEFAULT_VOLTAGE; | |
186 | devc->coupling_ch1 = DEFAULT_COUPLING; | |
187 | devc->coupling_ch2 = DEFAULT_COUPLING; | |
188 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; | |
189 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; | |
190 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; | |
191 | devc->framesize = DEFAULT_FRAMESIZE; | |
192 | devc->triggerslope = SLOPE_POSITIVE; | |
193 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); | |
194 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; | |
195 | sdi->priv = devc; | |
a873c594 | 196 | drvc = di->priv; |
269971dd | 197 | drvc->instances = g_slist_append(drvc->instances, sdi); |
3b533202 BV |
198 | |
199 | return sdi; | |
200 | } | |
201 | ||
014359e3 | 202 | static int configure_probes(const struct sr_dev_inst *sdi) |
3b533202 | 203 | { |
014359e3 | 204 | struct dev_context *devc; |
69e19dd7 | 205 | struct sr_probe *probe; |
62bb8840 | 206 | const GSList *l; |
69e19dd7 | 207 | int p; |
3b533202 | 208 | |
014359e3 BV |
209 | devc = sdi->priv; |
210 | ||
69e19dd7 | 211 | g_slist_free(devc->enabled_probes); |
269971dd | 212 | devc->ch1_enabled = devc->ch2_enabled = FALSE; |
69e19dd7 BV |
213 | for (l = sdi->probes, p = 0; l; l = l->next, p++) { |
214 | probe = l->data; | |
215 | if (p == 0) | |
269971dd | 216 | devc->ch1_enabled = probe->enabled; |
69e19dd7 | 217 | else |
269971dd | 218 | devc->ch2_enabled = probe->enabled; |
69e19dd7 BV |
219 | if (probe->enabled) |
220 | devc->enabled_probes = g_slist_append(devc->enabled_probes, probe); | |
3b533202 BV |
221 | } |
222 | ||
223 | return SR_OK; | |
224 | } | |
225 | ||
39cfdd75 | 226 | /* Properly close and free all devices. */ |
811deee4 | 227 | static int clear_instances(void) |
39cfdd75 BV |
228 | { |
229 | struct sr_dev_inst *sdi; | |
269971dd BV |
230 | struct drv_context *drvc; |
231 | struct dev_context *devc; | |
39cfdd75 BV |
232 | GSList *l; |
233 | ||
a873c594 | 234 | drvc = di->priv; |
269971dd | 235 | for (l = drvc->instances; l; l = l->next) { |
39cfdd75 BV |
236 | if (!(sdi = l->data)) { |
237 | /* Log error, but continue cleaning up the rest. */ | |
e98b7f1b | 238 | sr_err("%s: sdi was NULL, continuing", __func__); |
39cfdd75 BV |
239 | continue; |
240 | } | |
269971dd | 241 | if (!(devc = sdi->priv)) { |
39cfdd75 | 242 | /* Log error, but continue cleaning up the rest. */ |
e98b7f1b | 243 | sr_err("%s: sdi->priv was NULL, continuing", __func__); |
39cfdd75 BV |
244 | continue; |
245 | } | |
246 | dso_close(sdi); | |
269971dd BV |
247 | sr_usb_dev_inst_free(devc->usb); |
248 | g_free(devc->triggersource); | |
69e19dd7 | 249 | g_slist_free(devc->enabled_probes); |
39cfdd75 BV |
250 | |
251 | sr_dev_inst_free(sdi); | |
252 | } | |
253 | ||
269971dd BV |
254 | g_slist_free(drvc->instances); |
255 | drvc->instances = NULL; | |
39cfdd75 | 256 | |
811deee4 | 257 | return SR_OK; |
39cfdd75 BV |
258 | } |
259 | ||
34f06b90 | 260 | static int hw_init(struct sr_context *sr_ctx) |
61136ea6 | 261 | { |
269971dd BV |
262 | struct drv_context *drvc; |
263 | ||
264 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
e98b7f1b | 265 | sr_err("Driver context malloc failed."); |
886a52b6 | 266 | return SR_ERR_MALLOC; |
269971dd | 267 | } |
61136ea6 | 268 | |
1ebe4b4e | 269 | drvc->sr_ctx = sr_ctx; |
a873c594 | 270 | di->priv = drvc; |
269971dd | 271 | |
61136ea6 BV |
272 | return SR_OK; |
273 | } | |
274 | ||
39cfdd75 | 275 | static GSList *hw_scan(GSList *options) |
3b533202 BV |
276 | { |
277 | struct sr_dev_inst *sdi; | |
62bb8840 | 278 | const struct dso_profile *prof; |
269971dd BV |
279 | struct drv_context *drvc; |
280 | struct dev_context *devc; | |
39cfdd75 BV |
281 | GSList *devices; |
282 | struct libusb_device_descriptor des; | |
3b533202 | 283 | libusb_device **devlist; |
61136ea6 | 284 | int devcnt, ret, i, j; |
3b533202 | 285 | |
39cfdd75 | 286 | (void)options; |
e98b7f1b | 287 | |
3b533202 | 288 | devcnt = 0; |
39cfdd75 | 289 | devices = 0; |
a873c594 | 290 | drvc = di->priv; |
269971dd | 291 | drvc->instances = NULL; |
39cfdd75 BV |
292 | |
293 | clear_instances(); | |
294 | ||
295 | /* Find all Hantek DSO devices and upload firmware to all of them. */ | |
d4abb463 | 296 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 | 297 | for (i = 0; devlist[i]; i++) { |
61136ea6 | 298 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
d4928d71 PS |
299 | sr_err("Failed to get device descriptor: %s.", |
300 | libusb_error_name(ret)); | |
3b533202 BV |
301 | continue; |
302 | } | |
303 | ||
304 | prof = NULL; | |
305 | for (j = 0; dev_profiles[j].orig_vid; j++) { | |
306 | if (des.idVendor == dev_profiles[j].orig_vid | |
307 | && des.idProduct == dev_profiles[j].orig_pid) { | |
308 | /* Device matches the pre-firmware profile. */ | |
309 | prof = &dev_profiles[j]; | |
e98b7f1b | 310 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 | 311 | sdi = dso_dev_new(devcnt, prof); |
39cfdd75 | 312 | devices = g_slist_append(devices, sdi); |
269971dd | 313 | devc = sdi->priv; |
3b533202 BV |
314 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
315 | prof->firmware) == SR_OK) | |
316 | /* Remember when the firmware on this device was updated */ | |
269971dd | 317 | devc->fw_updated = g_get_monotonic_time(); |
3b533202 | 318 | else |
e98b7f1b UH |
319 | sr_err("Firmware upload failed for " |
320 | "device %d.", devcnt); | |
3b533202 | 321 | /* Dummy USB address of 0xff will get overwritten later. */ |
269971dd | 322 | devc->usb = sr_usb_dev_inst_new( |
3b533202 BV |
323 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
324 | devcnt++; | |
325 | break; | |
326 | } else if (des.idVendor == dev_profiles[j].fw_vid | |
327 | && des.idProduct == dev_profiles[j].fw_pid) { | |
328 | /* Device matches the post-firmware profile. */ | |
329 | prof = &dev_profiles[j]; | |
e98b7f1b | 330 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 BV |
331 | sdi = dso_dev_new(devcnt, prof); |
332 | sdi->status = SR_ST_INACTIVE; | |
39cfdd75 | 333 | devices = g_slist_append(devices, sdi); |
269971dd BV |
334 | devc = sdi->priv; |
335 | devc->usb = sr_usb_dev_inst_new( | |
3b533202 BV |
336 | libusb_get_bus_number(devlist[i]), |
337 | libusb_get_device_address(devlist[i]), NULL); | |
338 | devcnt++; | |
339 | break; | |
340 | } | |
341 | } | |
342 | if (!prof) | |
343 | /* not a supported VID/PID */ | |
344 | continue; | |
345 | } | |
346 | libusb_free_device_list(devlist, 1); | |
347 | ||
39cfdd75 | 348 | return devices; |
3b533202 BV |
349 | } |
350 | ||
811deee4 BV |
351 | static GSList *hw_dev_list(void) |
352 | { | |
353 | struct drv_context *drvc; | |
354 | ||
a873c594 | 355 | drvc = di->priv; |
811deee4 BV |
356 | |
357 | return drvc->instances; | |
358 | } | |
359 | ||
25a0f108 | 360 | static int hw_dev_open(struct sr_dev_inst *sdi) |
3b533202 | 361 | { |
269971dd | 362 | struct dev_context *devc; |
fc8fe3e3 BV |
363 | int64_t timediff_us, timediff_ms; |
364 | int err; | |
3b533202 | 365 | |
269971dd | 366 | devc = sdi->priv; |
3b533202 BV |
367 | |
368 | /* | |
e98b7f1b UH |
369 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
370 | * for the FX2 to renumerate. | |
3b533202 | 371 | */ |
fc8fe3e3 | 372 | err = SR_ERR; |
269971dd | 373 | if (devc->fw_updated > 0) { |
e98b7f1b UH |
374 | sr_info("Waiting for device to reset."); |
375 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
3b533202 | 376 | g_usleep(300 * 1000); |
fc8fe3e3 BV |
377 | timediff_ms = 0; |
378 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
25a0f108 | 379 | if ((err = dso_open(sdi)) == SR_OK) |
3b533202 BV |
380 | break; |
381 | g_usleep(100 * 1000); | |
269971dd | 382 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
fc8fe3e3 | 383 | timediff_ms = timediff_us / 1000; |
e98b7f1b | 384 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
3b533202 | 385 | } |
e98b7f1b | 386 | sr_info("Device came back after %d ms.", timediff_ms); |
3b533202 | 387 | } else { |
25a0f108 | 388 | err = dso_open(sdi); |
3b533202 BV |
389 | } |
390 | ||
391 | if (err != SR_OK) { | |
e98b7f1b | 392 | sr_err("Unable to open device."); |
3b533202 BV |
393 | return SR_ERR; |
394 | } | |
395 | ||
269971dd | 396 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
3b533202 | 397 | if (err != 0) { |
d4928d71 PS |
398 | sr_err("Unable to claim interface: %s.", |
399 | libusb_error_name(err)); | |
3b533202 BV |
400 | return SR_ERR; |
401 | } | |
402 | ||
403 | return SR_OK; | |
404 | } | |
405 | ||
25a0f108 | 406 | static int hw_dev_close(struct sr_dev_inst *sdi) |
3b533202 | 407 | { |
3b533202 BV |
408 | dso_close(sdi); |
409 | ||
410 | return SR_OK; | |
411 | } | |
412 | ||
413 | static int hw_cleanup(void) | |
414 | { | |
269971dd BV |
415 | struct drv_context *drvc; |
416 | ||
a873c594 | 417 | if (!(drvc = di->priv)) |
269971dd | 418 | return SR_OK; |
3b533202 | 419 | |
39cfdd75 | 420 | clear_instances(); |
3b533202 | 421 | |
3b533202 BV |
422 | return SR_OK; |
423 | } | |
424 | ||
035a1078 | 425 | static int config_get(int id, const void **data, const struct sr_dev_inst *sdi) |
3b533202 | 426 | { |
3b533202 BV |
427 | uint64_t tmp; |
428 | ||
6f57fd96 BV |
429 | (void)sdi; |
430 | ||
035a1078 | 431 | switch (id) { |
2ce9f046 BV |
432 | case SR_DI_HWCAPS: |
433 | *data = hwcaps; | |
434 | break; | |
a370ef19 | 435 | case SR_DI_BUFFERSIZES: |
0b79bcbb | 436 | *data = buffersizes; |
a370ef19 BV |
437 | break; |
438 | case SR_DI_TIMEBASES: | |
0b79bcbb | 439 | *data = timebases; |
a370ef19 BV |
440 | break; |
441 | case SR_DI_TRIGGER_SOURCES: | |
0b79bcbb | 442 | *data = trigger_sources; |
a370ef19 | 443 | break; |
ebb781a6 | 444 | case SR_DI_FILTERS: |
0b79bcbb | 445 | *data = filter_targets; |
ebb781a6 | 446 | break; |
313deed2 | 447 | case SR_DI_VDIVS: |
0b79bcbb | 448 | *data = vdivs; |
313deed2 | 449 | break; |
4a090d72 | 450 | case SR_DI_COUPLING: |
0b79bcbb | 451 | *data = coupling; |
4a090d72 | 452 | break; |
3b533202 BV |
453 | /* TODO remove this */ |
454 | case SR_DI_CUR_SAMPLERATE: | |
0b79bcbb | 455 | *data = &tmp; |
3b533202 | 456 | break; |
b0c8d7ac BV |
457 | default: |
458 | return SR_ERR_ARG; | |
3b533202 BV |
459 | } |
460 | ||
0b79bcbb | 461 | return SR_OK; |
3b533202 BV |
462 | } |
463 | ||
035a1078 | 464 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
3b533202 | 465 | { |
269971dd | 466 | struct dev_context *devc; |
a370ef19 BV |
467 | struct sr_rational tmp_rat; |
468 | float tmp_float; | |
469 | uint64_t tmp_u64; | |
470 | int ret, i; | |
4a090d72 | 471 | char **targets; |
3b533202 | 472 | |
3b533202 BV |
473 | if (sdi->status != SR_ST_ACTIVE) |
474 | return SR_ERR; | |
475 | ||
a370ef19 | 476 | ret = SR_OK; |
269971dd | 477 | devc = sdi->priv; |
035a1078 | 478 | switch (id) { |
1953564a | 479 | case SR_CONF_LIMIT_FRAMES: |
269971dd | 480 | devc->limit_frames = *(const uint64_t *)value; |
ae88b97b | 481 | break; |
1953564a | 482 | case SR_CONF_TRIGGER_SLOPE: |
62bb8840 | 483 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
484 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
485 | ret = SR_ERR_ARG; | |
269971dd | 486 | devc->triggerslope = tmp_u64; |
a370ef19 | 487 | break; |
1953564a | 488 | case SR_CONF_HORIZ_TRIGGERPOS: |
62bb8840 | 489 | tmp_float = *(const float *)value; |
a370ef19 | 490 | if (tmp_float < 0.0 || tmp_float > 1.0) { |
e98b7f1b | 491 | sr_err("Trigger position should be between 0.0 and 1.0."); |
3b533202 | 492 | ret = SR_ERR_ARG; |
a370ef19 | 493 | } else |
269971dd | 494 | devc->triggerposition = tmp_float; |
a370ef19 | 495 | break; |
1953564a | 496 | case SR_CONF_BUFFERSIZE: |
62bb8840 | 497 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
498 | for (i = 0; buffersizes[i]; i++) { |
499 | if (buffersizes[i] == tmp_u64) { | |
269971dd | 500 | devc->framesize = tmp_u64; |
a370ef19 BV |
501 | break; |
502 | } | |
503 | } | |
504 | if (buffersizes[i] == 0) | |
505 | ret = SR_ERR_ARG; | |
506 | break; | |
1953564a | 507 | case SR_CONF_TIMEBASE: |
62bb8840 | 508 | tmp_rat = *(const struct sr_rational *)value; |
a370ef19 BV |
509 | for (i = 0; timebases[i].p && timebases[i].q; i++) { |
510 | if (timebases[i].p == tmp_rat.p | |
511 | && timebases[i].q == tmp_rat.q) { | |
269971dd | 512 | devc->timebase = i; |
a370ef19 BV |
513 | break; |
514 | } | |
515 | } | |
516 | if (timebases[i].p == 0 && timebases[i].q == 0) | |
517 | ret = SR_ERR_ARG; | |
518 | break; | |
1953564a | 519 | case SR_CONF_TRIGGER_SOURCE: |
a370ef19 | 520 | for (i = 0; trigger_sources[i]; i++) { |
4a090d72 | 521 | if (!strcmp(value, trigger_sources[i])) { |
269971dd | 522 | devc->triggersource = g_strdup(value); |
a370ef19 BV |
523 | break; |
524 | } | |
525 | } | |
526 | if (trigger_sources[i] == 0) | |
527 | ret = SR_ERR_ARG; | |
528 | break; | |
1953564a | 529 | case SR_CONF_FILTER: |
269971dd | 530 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
ebb781a6 BV |
531 | targets = g_strsplit(value, ",", 0); |
532 | for (i = 0; targets[i]; i++) { | |
533 | if (targets[i] == '\0') | |
534 | /* Empty filter string can be used to clear them all. */ | |
535 | ; | |
536 | else if (!strcmp(targets[i], "CH1")) | |
269971dd | 537 | devc->filter_ch1 = TRUE; |
ebb781a6 | 538 | else if (!strcmp(targets[i], "CH2")) |
269971dd | 539 | devc->filter_ch2 = TRUE; |
ebb781a6 | 540 | else if (!strcmp(targets[i], "TRIGGER")) |
269971dd | 541 | devc->filter_trigger = TRUE; |
ebb781a6 | 542 | else { |
e98b7f1b | 543 | sr_err("Invalid filter target %s.", targets[i]); |
ebb781a6 BV |
544 | ret = SR_ERR_ARG; |
545 | } | |
546 | } | |
547 | g_strfreev(targets); | |
548 | break; | |
1953564a | 549 | case SR_CONF_VDIV: |
e98b7f1b | 550 | /* TODO: Not supporting vdiv per channel yet. */ |
62bb8840 | 551 | tmp_rat = *(const struct sr_rational *)value; |
313deed2 BV |
552 | for (i = 0; vdivs[i].p && vdivs[i].q; i++) { |
553 | if (vdivs[i].p == tmp_rat.p | |
554 | && vdivs[i].q == tmp_rat.q) { | |
269971dd BV |
555 | devc->voltage_ch1 = i; |
556 | devc->voltage_ch2 = i; | |
313deed2 BV |
557 | break; |
558 | } | |
559 | } | |
560 | if (vdivs[i].p == 0 && vdivs[i].q == 0) | |
561 | ret = SR_ERR_ARG; | |
562 | break; | |
1953564a | 563 | case SR_CONF_COUPLING: |
e98b7f1b | 564 | /* TODO: Not supporting coupling per channel yet. */ |
b58fbd99 | 565 | for (i = 0; coupling[i]; i++) { |
4a090d72 | 566 | if (!strcmp(value, coupling[i])) { |
269971dd BV |
567 | devc->coupling_ch1 = i; |
568 | devc->coupling_ch2 = i; | |
b58fbd99 BV |
569 | break; |
570 | } | |
571 | } | |
572 | if (coupling[i] == 0) | |
573 | ret = SR_ERR_ARG; | |
574 | break; | |
3b533202 BV |
575 | default: |
576 | ret = SR_ERR_ARG; | |
e98b7f1b | 577 | break; |
3b533202 BV |
578 | } |
579 | ||
580 | return ret; | |
581 | } | |
582 | ||
a1c743fc BV |
583 | static int config_list(int key, const void **data, const struct sr_dev_inst *sdi) |
584 | { | |
585 | ||
586 | (void)sdi; | |
587 | ||
588 | switch (key) { | |
589 | default: | |
590 | return SR_ERR_ARG; | |
591 | } | |
592 | ||
593 | return SR_OK; | |
594 | } | |
595 | ||
69e19dd7 | 596 | static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, |
e749a8cb | 597 | int num_samples) |
3b533202 BV |
598 | { |
599 | struct sr_datafeed_packet packet; | |
600 | struct sr_datafeed_analog analog; | |
69e19dd7 | 601 | struct dev_context *devc; |
c5841b28 | 602 | float ch1, ch2, range; |
6e71ef3b | 603 | int num_probes, data_offset, i; |
3b533202 | 604 | |
69e19dd7 | 605 | devc = sdi->priv; |
269971dd | 606 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
3b533202 BV |
607 | packet.type = SR_DF_ANALOG; |
608 | packet.payload = &analog; | |
6e71ef3b | 609 | /* TODO: support for 5xxx series 9-bit samples */ |
69e19dd7 | 610 | analog.probes = devc->enabled_probes; |
e749a8cb | 611 | analog.num_samples = num_samples; |
9956f285 UH |
612 | analog.mq = SR_MQ_VOLTAGE; |
613 | analog.unit = SR_UNIT_VOLT; | |
886a52b6 | 614 | /* TODO: Check malloc return value. */ |
6e71ef3b BV |
615 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
616 | data_offset = 0; | |
3b533202 | 617 | for (i = 0; i < analog.num_samples; i++) { |
e98b7f1b UH |
618 | /* |
619 | * The device always sends data for both channels. If a channel | |
6e71ef3b | 620 | * is disabled, it contains a copy of the enabled channel's |
e98b7f1b UH |
621 | * data. However, we only send the requested channels to |
622 | * the bus. | |
c5841b28 | 623 | * |
e98b7f1b UH |
624 | * Voltage values are encoded as a value 0-255 (0-512 on the |
625 | * DSO-5200*), where the value is a point in the range | |
626 | * represented by the vdiv setting. There are 8 vertical divs, | |
627 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V | |
628 | * and 255 = +2V. | |
6e71ef3b | 629 | */ |
e98b7f1b | 630 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
269971dd BV |
631 | if (devc->ch1_enabled) { |
632 | range = ((float)vdivs[devc->voltage_ch1].p / vdivs[devc->voltage_ch1].q) * 8; | |
e749a8cb | 633 | ch1 = range / 255 * *(buf + i * 2 + 1); |
c5841b28 BV |
634 | /* Value is centered around 0V. */ |
635 | ch1 -= range / 2; | |
6e71ef3b BV |
636 | analog.data[data_offset++] = ch1; |
637 | } | |
269971dd BV |
638 | if (devc->ch2_enabled) { |
639 | range = ((float)vdivs[devc->voltage_ch2].p / vdivs[devc->voltage_ch2].q) * 8; | |
e749a8cb | 640 | ch2 = range / 255 * *(buf + i * 2); |
c5841b28 | 641 | ch2 -= range / 2; |
6e71ef3b BV |
642 | analog.data[data_offset++] = ch2; |
643 | } | |
3b533202 | 644 | } |
269971dd | 645 | sr_session_send(devc->cb_data, &packet); |
e749a8cb BV |
646 | } |
647 | ||
e98b7f1b UH |
648 | /* |
649 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
e749a8cb | 650 | * Only channel data comes in asynchronously, and all transfers for this are |
e98b7f1b | 651 | * queued up beforehand, so this just needs to chuck the incoming data onto |
e749a8cb BV |
652 | * the libsigrok session bus. |
653 | */ | |
654 | static void receive_transfer(struct libusb_transfer *transfer) | |
655 | { | |
656 | struct sr_datafeed_packet packet; | |
69e19dd7 | 657 | struct sr_dev_inst *sdi; |
269971dd | 658 | struct dev_context *devc; |
e749a8cb BV |
659 | int num_samples, pre; |
660 | ||
69e19dd7 BV |
661 | sdi = transfer->user_data; |
662 | devc = sdi->priv; | |
e98b7f1b UH |
663 | sr_dbg("receive_transfer(): status %d received %d bytes.", |
664 | transfer->status, transfer->actual_length); | |
e749a8cb BV |
665 | |
666 | if (transfer->actual_length == 0) | |
667 | /* Nothing to send to the bus. */ | |
668 | return; | |
669 | ||
670 | num_samples = transfer->actual_length / 2; | |
671 | ||
e98b7f1b UH |
672 | sr_dbg("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
673 | devc->samp_received + num_samples, devc->framesize); | |
e749a8cb | 674 | |
e98b7f1b UH |
675 | /* |
676 | * The device always sends a full frame, but the beginning of the frame | |
e749a8cb BV |
677 | * doesn't represent the trigger point. The offset at which the trigger |
678 | * happened came in with the capture state, so we need to start sending | |
e98b7f1b UH |
679 | * from there up the session bus. The samples in the frame buffer |
680 | * before that trigger point came after the end of the device's frame | |
681 | * buffer was reached, and it wrapped around to overwrite up until the | |
682 | * trigger point. | |
e749a8cb | 683 | */ |
269971dd | 684 | if (devc->samp_received < devc->trigger_offset) { |
e749a8cb | 685 | /* Trigger point not yet reached. */ |
269971dd | 686 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
e749a8cb | 687 | /* The entire chunk is before the trigger point. */ |
269971dd | 688 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
e749a8cb | 689 | transfer->buffer, num_samples * 2); |
269971dd | 690 | devc->samp_buffered += num_samples; |
e749a8cb | 691 | } else { |
e98b7f1b UH |
692 | /* |
693 | * This chunk hits or overruns the trigger point. | |
e749a8cb | 694 | * Store the part before the trigger fired, and |
e98b7f1b UH |
695 | * send the rest up to the session bus. |
696 | */ | |
269971dd BV |
697 | pre = devc->trigger_offset - devc->samp_received; |
698 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
e749a8cb | 699 | transfer->buffer, pre * 2); |
269971dd | 700 | devc->samp_buffered += pre; |
e749a8cb BV |
701 | |
702 | /* The rest of this chunk starts with the trigger point. */ | |
e98b7f1b UH |
703 | sr_dbg("Reached trigger point, %d samples buffered.", |
704 | devc->samp_buffered); | |
e749a8cb BV |
705 | |
706 | /* Avoid the corner case where the chunk ended at | |
707 | * exactly the trigger point. */ | |
708 | if (num_samples > pre) | |
69e19dd7 | 709 | send_chunk(sdi, transfer->buffer + pre * 2, |
e749a8cb BV |
710 | num_samples - pre); |
711 | } | |
712 | } else { | |
713 | /* Already past the trigger point, just send it all out. */ | |
69e19dd7 | 714 | send_chunk(sdi, transfer->buffer, |
e749a8cb BV |
715 | num_samples); |
716 | } | |
717 | ||
269971dd | 718 | devc->samp_received += num_samples; |
e749a8cb BV |
719 | |
720 | /* Everything in this transfer was either copied to the buffer or | |
721 | * sent to the session bus. */ | |
3b533202 BV |
722 | g_free(transfer->buffer); |
723 | libusb_free_transfer(transfer); | |
3b533202 | 724 | |
269971dd | 725 | if (devc->samp_received >= devc->framesize) { |
e749a8cb BV |
726 | /* That was the last chunk in this frame. Send the buffered |
727 | * pre-trigger samples out now, in one big chunk. */ | |
e98b7f1b UH |
728 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
729 | devc->samp_buffered); | |
69e19dd7 | 730 | send_chunk(sdi, devc->framebuf, devc->samp_buffered); |
e749a8cb BV |
731 | |
732 | /* Mark the end of this frame. */ | |
ae88b97b | 733 | packet.type = SR_DF_FRAME_END; |
269971dd | 734 | sr_session_send(devc->cb_data, &packet); |
ae88b97b | 735 | |
269971dd | 736 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
ae88b97b | 737 | /* Terminate session */ |
a3508e33 | 738 | devc->dev_state = STOPPING; |
ae88b97b | 739 | } else { |
269971dd | 740 | devc->dev_state = NEW_CAPTURE; |
ae88b97b BV |
741 | } |
742 | } | |
3b533202 BV |
743 | } |
744 | ||
745 | static int handle_event(int fd, int revents, void *cb_data) | |
746 | { | |
a3508e33 | 747 | const struct sr_dev_inst *sdi; |
ae88b97b | 748 | struct sr_datafeed_packet packet; |
3b533202 | 749 | struct timeval tv; |
269971dd | 750 | struct dev_context *devc; |
a873c594 | 751 | struct drv_context *drvc = di->priv; |
a3508e33 BV |
752 | const struct libusb_pollfd **lupfd; |
753 | int num_probes, i; | |
6e6eeff4 BV |
754 | uint32_t trigger_offset; |
755 | uint8_t capturestate; | |
3b533202 | 756 | |
3b533202 BV |
757 | (void)fd; |
758 | (void)revents; | |
759 | ||
269971dd BV |
760 | sdi = cb_data; |
761 | devc = sdi->priv; | |
a3508e33 BV |
762 | if (devc->dev_state == STOPPING) { |
763 | /* We've been told to wind up the acquisition. */ | |
e98b7f1b UH |
764 | sr_dbg("Stopping acquisition."); |
765 | /* | |
766 | * TODO: Doesn't really cancel pending transfers so they might | |
767 | * come in after SR_DF_END is sent. | |
768 | */ | |
d4abb463 | 769 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
a3508e33 BV |
770 | for (i = 0; lupfd[i]; i++) |
771 | sr_source_remove(lupfd[i]->fd); | |
772 | free(lupfd); | |
773 | ||
774 | packet.type = SR_DF_END; | |
775 | sr_session_send(sdi, &packet); | |
776 | ||
777 | devc->dev_state = IDLE; | |
778 | ||
779 | return TRUE; | |
780 | } | |
781 | ||
3b533202 BV |
782 | /* Always handle pending libusb events. */ |
783 | tv.tv_sec = tv.tv_usec = 0; | |
d4abb463 | 784 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
3b533202 | 785 | |
3b533202 | 786 | /* TODO: ugh */ |
269971dd BV |
787 | if (devc->dev_state == NEW_CAPTURE) { |
788 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 789 | return TRUE; |
269971dd | 790 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 791 | return TRUE; |
269971dd | 792 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 793 | // return TRUE; |
e98b7f1b | 794 | sr_dbg("Successfully requested next chunk."); |
269971dd | 795 | devc->dev_state = CAPTURE; |
3b533202 BV |
796 | return TRUE; |
797 | } | |
269971dd | 798 | if (devc->dev_state != CAPTURE) |
3b533202 BV |
799 | return TRUE; |
800 | ||
269971dd | 801 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
3b533202 | 802 | return TRUE; |
3b533202 | 803 | |
e98b7f1b UH |
804 | sr_dbg("Capturestate %d.", capturestate); |
805 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); | |
3b533202 BV |
806 | switch (capturestate) { |
807 | case CAPTURE_EMPTY: | |
269971dd BV |
808 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
809 | devc->capture_empty_count = 0; | |
810 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 811 | break; |
269971dd | 812 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 813 | break; |
269971dd | 814 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 815 | // break; |
e98b7f1b | 816 | sr_dbg("Successfully requested next chunk."); |
3b533202 BV |
817 | } |
818 | break; | |
819 | case CAPTURE_FILLING: | |
e98b7f1b | 820 | /* No data yet. */ |
3b533202 BV |
821 | break; |
822 | case CAPTURE_READY_8BIT: | |
e749a8cb | 823 | /* Remember where in the captured frame the trigger is. */ |
269971dd | 824 | devc->trigger_offset = trigger_offset; |
e749a8cb | 825 | |
269971dd | 826 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
886a52b6 | 827 | /* TODO: Check malloc return value. */ |
269971dd BV |
828 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); |
829 | devc->samp_buffered = devc->samp_received = 0; | |
e749a8cb | 830 | |
3b533202 | 831 | /* Tell the scope to send us the first frame. */ |
69e19dd7 | 832 | if (dso_get_channeldata(sdi, receive_transfer) != SR_OK) |
3b533202 | 833 | break; |
ae88b97b | 834 | |
e98b7f1b UH |
835 | /* |
836 | * Don't hit the state machine again until we're done fetching | |
ae88b97b BV |
837 | * the data we just told the scope to send. |
838 | */ | |
269971dd | 839 | devc->dev_state = FETCH_DATA; |
ae88b97b BV |
840 | |
841 | /* Tell the frontend a new frame is on the way. */ | |
842 | packet.type = SR_DF_FRAME_BEGIN; | |
269971dd | 843 | sr_session_send(sdi, &packet); |
3b533202 BV |
844 | break; |
845 | case CAPTURE_READY_9BIT: | |
846 | /* TODO */ | |
e98b7f1b | 847 | sr_err("Not yet supported."); |
3b533202 BV |
848 | break; |
849 | case CAPTURE_TIMEOUT: | |
850 | /* Doesn't matter, we'll try again next time. */ | |
851 | break; | |
852 | default: | |
e98b7f1b UH |
853 | sr_dbg("Unknown capture state: %d.", capturestate); |
854 | break; | |
3b533202 BV |
855 | } |
856 | ||
857 | return TRUE; | |
858 | } | |
859 | ||
3ffb6964 | 860 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
e98b7f1b | 861 | void *cb_data) |
3b533202 BV |
862 | { |
863 | const struct libusb_pollfd **lupfd; | |
864 | struct sr_datafeed_packet packet; | |
865 | struct sr_datafeed_header header; | |
269971dd | 866 | struct dev_context *devc; |
a873c594 | 867 | struct drv_context *drvc = di->priv; |
3b533202 BV |
868 | int i; |
869 | ||
3b533202 BV |
870 | if (sdi->status != SR_ST_ACTIVE) |
871 | return SR_ERR; | |
872 | ||
269971dd BV |
873 | devc = sdi->priv; |
874 | devc->cb_data = cb_data; | |
3b533202 | 875 | |
014359e3 | 876 | if (configure_probes(sdi) != SR_OK) { |
e98b7f1b | 877 | sr_err("Failed to configure probes."); |
014359e3 BV |
878 | return SR_ERR; |
879 | } | |
880 | ||
269971dd | 881 | if (dso_init(devc) != SR_OK) |
3b533202 BV |
882 | return SR_ERR; |
883 | ||
269971dd | 884 | if (dso_capture_start(devc) != SR_OK) |
3b533202 BV |
885 | return SR_ERR; |
886 | ||
269971dd | 887 | devc->dev_state = CAPTURE; |
d4abb463 | 888 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
3b533202 | 889 | for (i = 0; lupfd[i]; i++) |
e98b7f1b UH |
890 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, |
891 | handle_event, (void *)sdi); | |
3b533202 BV |
892 | free(lupfd); |
893 | ||
894 | /* Send header packet to the session bus. */ | |
895 | packet.type = SR_DF_HEADER; | |
896 | packet.payload = (unsigned char *)&header; | |
897 | header.feed_version = 1; | |
898 | gettimeofday(&header.starttime, NULL); | |
899 | sr_session_send(cb_data, &packet); | |
900 | ||
3b533202 BV |
901 | return SR_OK; |
902 | } | |
903 | ||
69b07d14 | 904 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
3b533202 | 905 | { |
269971dd BV |
906 | struct dev_context *devc; |
907 | ||
908 | (void)cb_data; | |
3b533202 | 909 | |
3b533202 BV |
910 | if (sdi->status != SR_ST_ACTIVE) |
911 | return SR_ERR; | |
912 | ||
a3508e33 BV |
913 | devc = sdi->priv; |
914 | devc->dev_state = STOPPING; | |
3b533202 BV |
915 | |
916 | return SR_OK; | |
917 | } | |
918 | ||
62bb8840 | 919 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
3b533202 BV |
920 | .name = "hantek-dso", |
921 | .longname = "Hantek DSO", | |
922 | .api_version = 1, | |
923 | .init = hw_init, | |
924 | .cleanup = hw_cleanup, | |
61136ea6 | 925 | .scan = hw_scan, |
811deee4 BV |
926 | .dev_list = hw_dev_list, |
927 | .dev_clear = clear_instances, | |
035a1078 BV |
928 | .config_get = config_get, |
929 | .config_set = config_set, | |
a1c743fc | 930 | .config_list = config_list, |
3b533202 BV |
931 | .dev_open = hw_dev_open, |
932 | .dev_close = hw_dev_close, | |
62bb8840 UH |
933 | .dev_acquisition_start = hw_dev_acquisition_start, |
934 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
269971dd | 935 | .priv = NULL, |
3b533202 | 936 | }; |